中国塑料2025，Vol.39Issue(12)：20-26,7.DOI:10.19491/j.issn.1001-9278.2025.12.004
低温固化高韧性氰酸酯黏结剂制备及性能研究
Preparation and properties of a low-temperature curing,high-toughness cyanate ester adhesive
摘要
Abstract
A low-temperature curing and high-toughness cyanate ester adhesive was developed using bisphenol-E cyanate ester(BEDCy)as the base resin.The adhesive system employed a hybrid catalyst of aluminum acetylacetonate[Zn(acac)2]and diallylbisphenol A(DBA),with polyethersulfone(PES)as a toughening agent.The catalytic performance of DBA was evaluated by differential scanning calorimetry(DSC),Fourier-transform infrared spectroscopy,and thermo-gravimetric analysis.Results indicated that the Zn(acac)2/DBA hybrid catalyst was more effective than Zn(acac)2 alone in promoting the curing of BEDCy.An optimal formulation with 6 wt％DBA and 0.05 wt％Zn(acac)2 reduced the DSC curing peak temperature from 218 to 194 ℃,enabling complete curing below 200 ℃.This DBA/Zn(acac)2/BED-Cy system also exhibited superior curing properties and thermal stability compared to a system catalyzed by nonylphenol.Furthermore,the impact of PES content on the mechanical and thermal properties was investigated.The incorporation of 5 wt％PES as a toughener resulted in a 64％increase in bond strength compared to the unmodified CE,while main-taining a high 5％weight-loss temperature of 430℃.This work successfully achieves an adhesive with an effective bal-ance of low curing temperature,high toughness,and excellent thermal resistance.关键词
氰酸酯/胶黏剂/低温固化/增韧Key words
cyanate ester/adhesive/low temperature curing/toughen分类
化学化工引用本文复制引用
BAI Anjiang,QING Yu,CAI Lu,ZHAO Yonglong,ZHANG Jiali..低温固化高韧性氰酸酯黏结剂制备及性能研究[J].中国塑料,2025,39(12):20-26,7.基金项目
国家自然科学基金项目(52361014) （52361014）
国家自然科学基金项目(21865009) （21865009）
